Fastening device.



R. L. LYONS.

FASTENING DEVICE.

APPLICATION man JULY 24. 1914.

Patented Feb.19,1918.

ROBERT L. LYONS, OF WALTHAM, MASSAGE TSETTS, OSANN COMPANY, OF NEW YURK, N. Y.,

ASSIGNOB, T THE FREDERICK A CORPORATION OF NEW YORK.

FASTENING DEVICE.

Application filed July 24, 1914-.

To all whom it may concern: I

Be it known that 1, ROBERT L. LYoNs, of

altham, in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Fas toning Devices, of which the following is a specification, reference being had to the accompanying drawings, forming part thereof.

This invention has reference to improve ments in fastening devices commonly known as snap fasteners and comprising a pair of disk like members having perforations through which a needle carrying a thread may be passed to effect the sewing of said disks to parts of a garment or to other an ticlcs which it is desired to fasten together by means of the complemental engaging members with which said disks are furnished.

The obj eat of the present invention is to so construct the disks or bases of snap fasteners that they may be sewed to garments or other articles by sewing machines.

The invention consists in the provision for facilitating the positioning and holding member of a fastener relative to the path of a needle.

The invention also consists in such other novel features of construction and combination of parts as shall'hereinafter be more fully described and pointed out in the claims.

Figures 1 and 2 of the drawings represent plan views of the complementary members of a fastening device, of a well known construction furnished with my improvement.

Fig. 3 represents an enlarged View to diagrammatically illustrate the manner of holding the improved fastener by mechanical means.

Fig. at represents a plan view of Fig. 3.

Fig. 5 represents a plan view of one of the fastener members showing the same attached by stitches to a piece of fabric.

Similar reference characters corresponding parts throughout.

Fastening devices of the character herein referred to generally comprise a pair of cir eular metal disks having complemental engaging members and perforations through which a needle and thread may be passed in sewing said disks to garments. The needle holes in said disks are usually formed by punching out the material, whereby the walls of said perforations have sharp edges which designate Specification of Letters Patent.

Tatented Feb. 19, 1918.

Serial 150. 852.783.

are liable to cut the sewing thread if said thread is sewn through two of said perforations owing, for one reason to the fact that said perforations are necessarily very small so that the sewing needle must deliver and d aw its thread close to the wall of the per foration. The peripheral edges of said disk members are usually smooth and are not likely to cut thread. drawn thereover, and it is found desirable, in sewing on said fastener members, to sew stitches radially from said perforations outward over the peripheral e of said disk n'ieniber. By this radial di rection of the sewing stitches the periphery of the disk held closely to the fabric and the stitches may extend sufficiently beyond the periphery of the disk to afford some flexibility or yielding of the fabric or thread which tends to avoid the cutting of the t iread by the edge of the single perforation through which the thread passes. In some fasteners the peripheral edges of the disks are thicker than their central portions and the perforations are so'related to such thickened portions that said thickened portions constitute rounded edges for said perfora tions over w ich the sewing thread may be drawn to form radial stitches without cutting the thread.

Fasteners of the nature referred to depend somewhat for their spring action upon the manner in which they are attached and it is generally understood that stitches extending across any of the spring parts are ob jectionable. This is avoided by the use of the radial stitches above referred to.

In view of the construction of these fasteners I find the radially extending stitches, above mentioned as preferable, can be sewn through the perforations provided that said perforations are successively positioned to receive the needle in its sewing operation and that a relative movement is effected between the disk member during the sewing of one or more stitches.

in carrying this invention into practice I tak a fastener member 6 or 7 of any well tnown construction but preferably having 1 circular periphery, as shown in Figs. 1 and and hating the centering'opening 8 or the centering projection 9, complemontal to said ooening, and the perforations 1O, 10 spaced. a )art near the periphery of said member 6 or 7, and, I provide said member 6 or 7 with one or more registry or positioning devices which preferably are the edges l1, 11 of the notch 12-.

'i'. he central opening 8 and the projection (J of the respective members 6 and 7 cooperate with the edges 11, 11 of their related notches 12 whereby a fastener having these parts may be held in a suitable work holder similar to that shown in Figs. 3 and i of the drawing and having the work supporting plate 1 furnished ith a suitable needle pass .ge 1a to which extends the tongue 15. The work is held in place by the presser member 16 ha ring the member 17 which delines the position of the axis of the fastener i her by engagement with the centering b or 9 of the fastener members 6 or 7 athe case may be and one of the perforait), 10 of the fastener is positioned in l, with the path of the needle by the notch 12 to a position in which he pin i8 of the presser member 16 will enbetween the edges l1, 11 of said notch nibsequently the mechanism of course crates to present the lerforations 10, 10 the fastener successively to receive the needle and to effect relative movement between the fastener and the needle to provide for the sewing of groups of stitches a, a approximately radially from the perforations .10, 10 to points on the fabric Z) beyond the periph ry of the fastener. The mechanism for effecting such relative movement between the work and the needle and for presenting The perforations 10, 10 to receive the needle in any stitch forming operation does not form part of this invention and may be of any known kind.

It will be seen that this improved fastener has a centering means comprising the walls of the opening 8 or the projection 9 and the V Ex. :2

edges 11, ll of the notch 12. I am aware however that various other means may be substituted therefor whereby this fastener may be engaged at a point or points located within its periphery, as distinguished from the ordinary button clamp having means for engaging peripheral portions of a button or other disk, and it is not my intention to limit my invention to the specific means shown or, specifically, to any other means.

Having thus described my invention I claim as new and desire to secure by Letters Patent:

1. A fastener of the nature described c0mprising a centering means, a disK having a series of needle passages and an engageable means so located with reference to said needle passage that a holding device engaged with said engageable means may extend between a pair of said needle passages to ensaid centering means.

A fastener of the nature described comprising a circular disk having a series of needle passages, and a pair of cooperating engageable means adapted to receive a holdin g device said engageable means located out of registry with any one of said needle passages.

3. A disk shaped fastener having a continuous peripheral raised edge, and a mem ber embraced by said edge and having a series of needle passages, said raised edge having a notch located out of alinement radially with said needle passages and extending diametrically through a portion of said raised edge.

ROBERT L. LYONS.

\Vitnesses:

HENRY J. MILLER, ESTHER C. MURPHY.

Gopies or" this patent may be obtained for five cents each, by addressing the Commissioner of Patentn,

Washington, D. G. 

